/*
      *
      *  *  Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
      *  *
      *  *  Licensed under the Apache License, Version 2.0 (the "License");
      *  *  you may not use this file except in compliance with the License.
      *  *  You may obtain a copy of the License at
      *  *
      *  *       http://www.apache.org/licenses/LICENSE-2.0
      *  *
      *  *  Unless required by applicable law or agreed to in writing, software
      *  *  distributed under the License is distributed on an "AS IS" BASIS,
      *  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      *  *  See the License for the specific language governing permissions and
      *  *  limitations under the License.
      *  *
      *  * For more information: http://www.orientechnologies.com
      *
      */
package com.orientechnologies.orient.server;

import com.orientechnologies.common.log.OLogManager;
import com.orientechnologies.orient.core.Orient;

public class OServerShutdownHook extends Thread {
  private final OServer server;

  protected OServerShutdownHook(final OServer server) {
    this.server = server;
    Orient.instance().removeShutdownHook();
    Runtime.getRuntime().addShutdownHook(this);
  }

  /**
   * Catch the JVM exit and assure to shutdown the Orient Server.
   */
  @Override
  public void run() {
    if (server != null)
      try {
        if (!server.shutdown()) {
          // ALREADY IN SHUTDOWN, WAIT FOR 5 SEC MORE
          try {
            Thread.sleep(5000);
          } catch (InterruptedException e) {
          }
        }
      } finally {
        OLogManager.instance().shutdown();
      }
  }

  public void cancel() {
    try {
      Runtime.getRuntime().removeShutdownHook(this);
    } catch (IllegalStateException e) {
    }
  }
}
